When you play every day you can earn 5 points, and for each consecutive 7 day streak you get 50 points. You can also buy points at a rate of 10 points for every $1 you spend, and these points can be traded in for in-game currency.

The Kabam Rewards badge will show up in any participating game. The program is only available on iOS 6.0 and above though, so you might have to update in order to join.